Hair-clipper



F. G. WHITE.

HAIR CLIPPER. .APPLICATION FILED NOV. 22. 1918.

PatentedAug. 5,1919.

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k I ORNEY F. G. WHITE.

HAIR CLIPPER.

APPLICATION FILED NOV. 22. 1918.

1,311,935. PatentedAug. 5,1919.

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/f l 9 Z I o l *5 INVENTOR UNITED STATES PATENT OFFICE.

- 4 FRED G. WHITE, or xansas CITY, mlsso'tmr, ASSIGNOR, BY MESNE ASSIGNMENTS, To 'rnn ELECTRIC'CLIPPEB. COMPANY, OF FBEDONIA, KANSAS, A CORPORATION OF KANSAS.

HAIR-CLIPPER.

Specification of Letters Patent. I

Patented Au 5, '1919.

Application filed November 22, 1918. Serial No. 263,662.

To all whom it may concern:

Be it known that I, FRED G. Wm'm, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Hair-Clippers, of which the following is a specification.

This invention relates to power hair clippers and more especially to that class to be held and guided by an operator anddriven through. the instrumentality of a flexible shaft, from an electric motor or the like.

The specific object of the invention is to produce an 'efiicient hair clipper of small, compact, light and inexpensive construction, a further object being to provide means whereby the angle of the clippers may be changed to change the length of cut.

.Wlth these general objects in view and others of a specific character, the invention consists in certain novel and useful features of construction and combinations of parts as hereinafter described and claimedpand in order that it may be fully understood, reference is to be had to the accompanying drawings, in which:

Figure 1, is a top plan view of a power hair clipper embodying the invention.

Fig. 2, is a side view of the same.

Fig. 3, is a central vertical longitudinal section of the same, but with the clipping jaws in elevation.

Fig. 4:, is a plan view of the clipping jaws and of the plate to which power is applied to reciprocate the upper or movable jaw.

Fig. 5, is a central vertical section of Fig. 4, the section being taken transversely of the cutting blades.

and 'to guide the upper jaw-in its recipro catory movement the lower jaw is provided with a pair of upstanding studs 3 and the upper jaw with alined slots 4 receiving said studs. The rear end of the 11 'per jaw is tapered downward and rearwar ly at 5, and said rear end is bifurcatedat 6 to provide an opening for the reception of a lug- ,7

stamped out of and dependingfrom a plate- 8 resting upon the upper jaw 2 and provlded with slots 9 through which the guide studs 3 project. The plate 8 is provided with an upwardly and forwardly projecting lug 10 provlded with a longitudinal slot 11, and at o posite sides of said arm with down turned ugs 12 bearing upon the tapered rear edge 5 of the upper aw. Said plate 1s also provided with a recess 13 at its front edge, for a purpose which hereinafter appears. A carrying plate .14 fits upon the lower jaw 1 rearward of jaw 2, and screws 15 extend through said carrying plate and jww 1 to secure sald parts rigidly together. The carrying plate is provided at its rear edge with an upwardly and forwardly extending car 16, the same extending parallel with lug 10 of plate8, it being understood in this connection, that said lug and ear extend upwardly and forwardly or at an acute angle with respectto the plane of cutting operation. The ear is provided in alinement with the slot 11 of lug 10 with a threaded opening 17 wherein is screwed the reduced front end of a tube 18, and journaled in said tube is a shaft 19 provided at its front end with a crank arm comprising a portion 20 and an antifriction roller 21, the portion 20 fitting snugly between the ear and lug of plate 8 and carrying plate 14 respectively, the antifriction roller 21 being engaged with the slot 11 of said lug, it being noticed in this connection by reference to Figs. 6 and 7, that the portion 20 of the crank arm is increased in size at a point diametrically opposite the location of the antifriction roller to act as a counter-balance and hence insure smoother rotation of the shaft in its operation of the upper or reciprocatory jaw 2.

The shaft 19 is provided with a longitudinal bore 21 and with a longitudinal keyway 22, opening into said bore for a purpose which hereinafter appears, and rearward of said shaft the bore of the tube is enlarged as at 23 and counter-bored to provide cured thereon by a pin 26 or may be cast integral with the tube, and projecting from op osite sides of said tube at the point of e argement 1s a pair of handles 27 eaiiipped near heir front ends with outwar y and upwardly projecting gripping lugs 28 to enable the operator to hold the clippers more firmly in thehair cutting operation...

To exclude-hair from the slots inthe reciprocatory jaw, underlying plate and other operative connections, a'cap 29 fits over plate 8 and upon the rceiprocatory jaw, and 1s provided centrally with an arch or raised portion 30 receiving the lug 10 and the ear thus serving as an abutment whereby said spring shall cause the cap to exert a yielding pressure for holding the reciprocatory I jaw in proper shearing relation with the stationary or lower jaw. In order that this clamping action may be provided with the minimum of friction, the cap is provided with one or more internal lugs 34 bearing upon the recessed front edge of plate 8, and with a rib '35 bearing upon the upper edge of the slotted lug 10,'it'"being understood that the engaging surfaces of parts 34 and 35 with the plate and lug thereof shall be perfectly smooth and arallel to eliminate friction as far. as posslble. Itwill also be seen that by holding the cap pressed down with a yielding pressure, the jaws are main tained in proper shearing relation regardless of wear, and that appreciable wear may be taken up by increasing the tension of thespring by a slight forward adjustment of the abutment or nut upon the tube.

Owing to the fact that the spring is secured to the cap and fits within the recess in the front end of the nut or abutment 33, and of the .further fact that forward slid ing movement of the "cap is impossible due to upward and forward inclination of the jaws and plate 8, the cap can not become dislocated accidentally, it being understood, of course, that forward adjustment of the nut tends by reason of the inclination of the jaws, to press the upper or movable jaw down upon the lower or stationary jaw, and thus makes it possible to effect sufficient forward== adjustment of the cap to take up or compensate for wear'of the cutting jaws. As a precaution, however, against applying excessive pressure on the upper jaw, the ear 15 is provided with a rearwardly projecting stop lug 36 upon which the nut will impinge before the spring ceases to impose a yielding resistance to the advance of the nut;

As a means of holding the jaws at a greater angle to the head in performin the cutting operation, an attachment in the orm of a pivoted bail is provided, this bail comprisinga cylindrical portion 37 and a pair of sides or arms 38 pivoted'at 39 to opposite sides of the cap, the arrangement being such that the rod portion 37 of the bail may be disposed against the underside of the lower jaw not far from the cutting edge thereof or be swung from said position to a position underlying the nut. When in the latter position the bail is inoperative. When in the former position the bail will come in contact with the head of the person whose hair is being cut and thus hold the cutting edges of the jaws at such an angle that the hair can be clipped longer than when the bail occupies its inoperative position.

The flexible shaft 40 of an electric motor or the like, not shownyis adapted tov fit in the bore of shaft 19, and is interlocked with the same by bein provided with a key 41 for engagement with the slot or key-way of said shaft. The casing 43 at the end of the flexible shaft is equipped with springcatches 44. for'engaging the counterbore or groove 24 of the tube to guard against accidental withdrawal of the flexible shaft from th power transmitting shaft 19.

4 From the above description it will be apparent that I have produced a device of the character set forth possessing all of the features of advantage hereinbefore mentioned, and I wish it to be understood that while I have described and claimed the preferred embodiment of the invention I reserve the right to make all changes properly falling within the spirit and scope of the appended claims.

nections and the front end of said tube, and

yielding means tending to advance the cap and cause the same to hold the jaws pressed yieldingly together.

2. A power hair clipper comprising a tube or stem, a stationary jaw secured to said stem and extending convergingly upward catory jaw mounted upon the stationary jaw and movable to cooperate therewith in a shearing cutting action, a power transmission shaft journaled in the tube, connections at the front end of said shaft for transforming rotary movement thereof into reciprocatory movement of the upper jaw, a cap.

a and forward with .respect thereto, a reciprofitting over the said power-transmitting connections and the front end of said tube, yielding means tendin to advance the cap andcause the same to old the jaws pressed yieldingly together, and handles rigid with the tube.

3. A power hair clipper comprising a tube or stem, a stationary jaw secured to said stem and extending convergingly upward and forward with respect thereto, a reciprocatory jaw mounted upon the stationary jaw and movable to cooperate therewith in a shearing cutting action, a power transmission shaft journaled in the tube, connections at the front end of said shaft for transforming rotary movement thereof into reciprocatory movement of the upper jaw, a cap fitting over the said power-transmittin connections and the front end of said tu e, an abutment adjustable upon the tube toward and from the cap, and a spring interposed between the cap and abutment for pressing the former yieldingly in a forward direction to clamp the jaws yieldingly together.

4. A power hair clipper comprising a tube or stem, a stationary jaw secured to said stem and extending convergingly upward and forward with respect thereto, a reciprocatory jaw mounted upon the stationary jaw and movable to cotiperate therewith in a shearing cutting action, a power transmission shaft journaled in the tube, connections at the front end of said shaft for transforming rotary movement thereof into reciprocatory movement of the upper jaw, a cap fitting over the said power-transmittingconnections and the front end of said tube, an albutment adjustalble upon the tube toward and from the cap, a spring interposed between the cap and abutment for pressing the former yieldingly in a forward direction to clamp the jaws yieldingly together, and means for limiting forward ad ustment of the abutment.

5. A power hair clipper comprising a tube or stem, a stationary jaw secured to said stem and extending convergingly upward and forward with respect thereto, a reciprocatory jaw mounted upon the stationary jaw and movable to cooperate therewith in a shearin cutting action, a power transmission sha journaled in the tube, connections at the front endof said shaft for transforming rotary movement thereof into reciprocatory movement of the upper jaw, a cap fitting over the said power-transmitting connections and the front end of said tube, an abutment adjustable on the tube toward and from the cap and provided in its front side with a/ circular recess, and a spring secured to the cap at the rear side thereof and engaging the recess of said abutment and tending to advance the cap and cause the clamping of the upper jaw yieldingly upon the lower jaw.

6. A power hair clipper comprising a tube, a shaft journaled therein and provided forward of the tube with a crank, a jaw extending upwardly and forwardly with relation to the tube, a plate secured to said jaw and provided with an upwardly projecting ear secured to the front end of the tube, an upper jaw fitting slidingly upon the lower jaw, a plate mounted upon and movable with said upper jaw and provided with an upwardly projecting slotted lug engaged by said crank whereby rotation of said shaft shall effect reciprocatory movement of said plate and upper jaw, a cap fitting over said ear and said slotted lug and crank and the front end of the tube and bearing slidingly upon said lug and said plate, and yielding means tending to advance said cap and thereby cause the same to press said plate and hence said upper jaw yieldingly downward.

7 A power hair clipper comprising a tube and relatively movable jaws carried by the tube and extending'upwardly and forwardly beyond the front end of said tube, a suitably journaled shaft connected to the upper jaw for reciprocating the same, means for holding the jaws clamped yieldingly together to maintain them in proper operative relation, and adjustable means for disposition against the underside of the lower jaw near the front end thereof to increase the angle at which the jaws shall stand with respect to the head during the hair clipping operation.

In testimony whereof I afiix my signature. 

